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Whats the proper way To Resize Ubuntu VM from 20gb to 32gb For Root File System

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  • Community Expert

so i dont know ubuntu or linux that great been using windows mostly 40 years

but the ubuntu vm i have was saying low diskspace i only use it for Amazon Orders.. but its 19gb of 20..

i did reset the VMs image from 20gb to 32gb and thought it was self fix i saw several regular setups but not for a VM

i did tried "sudo parted -l" and says it found more diskspace unused if you like to use it type "Fix" but that didnt do anything read only

but how do you resize it in a VM imm running like ubuntu 24 something.. i didnt wanna mess it up so i figured id ask here first before i try anything more

Solved by comet424

If I remember right, you need to boot into live mode so you can actually modify and extend the partition with fdisk.

You won't be able to modify the system partition if its in use.

  • Author
  • Community Expert

ok so that means put the iso back in to put it to boot right its been like 4 years or so since i installed vm just updates

ill see if i got a iso of ubuntu 24 then and see what hte live mode does

  • Author
  • Community Expert

so i found i had a iso 24.04 desktop iso i put it in and i set Boot 1 and vm to Boot 2 i guess you use numbers and not letters as i never know there is no info on Boot setting

so it gave me desktop and icon Install Ubuntu 20.04 LTS so i guess thats live mode? or least install mode

do you happen to know how to properly extend with fdisk? and if not a link to exactly extend it then so i dont bugger up the vm ill also duplicate it incase it breaks

  • Author
  • Community Expert

so i did the install and i found a manual mode and shows resize.. i did resize it

and i shut down and edit the template to remove the iso from booting

and booted up.. it seemed to work i dont get the error.. but i dont know if it truly worked as i dont know how to see a visualation like in windows you have disk management

but i assume it worked

  • Author
  • Community Expert
  • Solution

update.. i found System monitor and there was a tab for File System.. and it shows total 33.1 available 12.7 so it did work

i apreciate your help as i wasnt sure

  • Author
  • Community Expert

@tjb_altf4 thank you for your help

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